Effect of liquid content on the abnormal grain growth of alumina

被引：0
|
作者：
Hong, SH [1 ]
Kim, DY
机构：
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea
[2] Seoul Natl Univ, Ctr Microstruct Sci Mat, Seoul 151742, South Korea
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2001年 / 84卷 / 07期
关键词：
D O I：
暂无
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Alumina specimens with small amounts of CaO and TiO2 were prepared and their microstructural evolution during sintering was investigated. Because of the appearance of a liquid phase during sintering, a duplex microstructure of a few abnormal grains and fine matrix grains was obtained when the CaO + TiO2 content was small (less than or equal to0.04 wt%). When the CaO + TiO2 content was relatively high (greater than or equal to0.1 wt%), many grains grew and impinged upon each other. As a result, a rather uniform and homogeneous microstructure was observed.
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页码：1597 / 1600
页数：4
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